47-705 18 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=30mm VIS 0° 425-675nm

The 47-705 is an 18 mm diameter achromatic doublet lens, designed and manufactured by Edmund Optics. This lens boasts an effective focal length (EFL) of 30mm and is optimized for the visible light spectrum, specifically within the wavelength range of 425-675nm.

The lens is constructed from two types of Schott glass, N-BAF10 and N-SF10, which are renowned for their high refractive indices and low dispersion properties. This combination aids in the reduction of chromatic aberration, ensuring superior image quality.

The 47-705 features a standard curvature coating on both the front and back surfaces, denoted as 'edm vis-0 std curve'. This coating enhances the lens's light transmission capabilities and provides protection against environmental factors, thereby increasing the lens's durability and lifespan.

The lens geometry is characterized by a thickness of 6.55mm at the edge, 6.91mm at the center, and a central thickness 'a' of 2mm. The lens's radii are defined as r1=20.73mm, r2=-14.31mm, and r3=-133.58mm. The inner and outer radii are both zero, indicating a circular shape.

The lens is available for purchase through the Edmund Optics website, and as of the data's last update, it was in stock. For more detailed information, including pricing and availability, please refer to the provided weblink.